Simple Machines

Miguel uses a wheelchair. Which simple machine does Miguel most likely use to get past the three steps at the front entrance of his school?

• inclined plane

• lever

• screw

• wedge

Which of the following tools is a simple machine?

• a broom

• a car

• a leaf blower

• a washing machine

Why does it take less force to turn a screw into wood rather than drive a nail into wood?

• screws are shorter than nails

• screws do more work than nails

• the threads on the screw increase the distance is travels

• screw act like levers, so they apply greater force than nails

Tags

NGSS.MS-ETS1-1

Which of these objects has a pulley that changes the direction of force?

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Tags

NGSS.MS-PS2-1

Which sentence about a wedge is true?

• One end is higher than the other

• It is two inclined planes back to back

• It uses circular motion to make work easier

• It is an inclined plane wrapped around a cylinder

What is an example of a wheel and axle?

• ax

• light bulb

• skateboard ramp

• bus tire

What is an example of an inclined plane?

• crane

• slide

• bike

• see-saw

What is an example of a wedge?

• door stop

• Your hair

• curtain

• wood screw

What is an example of a lever?

• ramp

• car

• arm

• teeth

Stairs

• wedge

• pulley

• inclined plane

• wheel and axle

Tags

NGSS.MS-PS2-1